new dialog for setting the time zone.

2001-06-14  Damon Chaplin  <damon@ximian.com>

	* gui/dialogs/e-timezone-dialog.[hc]:
	* gui/dialogs/e-timezone-dialog.glade: new dialog for setting the
	time zone.

	* gui/dialogs/Makefile.am: added timezone dialog files.

	* idl/evolution-calendar.idl: added CalTimezoneInfo struct and seq,
	and getBuiltinTimezoneInfo method.

	* pcs/cal.c (impl_Cal_get_builtin_timezone_info): implemented method.
	(cal_class_init): added method to epv.

	* cal-client/cal-client.c (struct CalClientPrivate): added
	timezone_info array to contain cached info on builtin timezone city
	names and coordinates.
	(cal_client_get_builtin_timezone_info): new function to get the info
	about builtin timezones.

	* cal-client/cal-client.h: added CalTimezoneInfo struct, to contain
	the city names and coords of the builtin timezones.

svn path=/trunk/; revision=10223

2 files changed, 111 insertions, 0 deletions

diff --git a/calendar/cal-client/cal-client.c b/calendar/cal-client/cal-client.c
index cd8c8713d6..d761370c74 100644
--- a/calendar/cal-client/cal-client.c
+++ b/calendar/cal-client/cal-client.c
@@ -50,6 +50,11 @@ struct _CalClientPrivate {
 
 	/* The calendar client interface object we are contacting */
 	GNOME_Evolution_Calendar_Cal cal;
+
+	/* An array of CalTimezone structs containing information on builtin
+	   timezones. We cache this so we only request it once from the
+	   server. */
+	GArray *timezone_info;
 };
 
 
@@ -66,6 +71,8 @@ static void cal_client_class_init (CalClientClass *class);
 static void cal_client_init (CalClient *client);
 static void cal_client_destroy (GtkObject *object);
 
+static void cal_client_free_builtin_timezone_info (GArray	*zones);
+
 static guint cal_client_signals[LAST_SIGNAL];
 
 static GtkObjectClass *parent_class;
@@ -155,6 +162,7 @@ cal_client_init (CalClient *client)
 	priv->load_state = CAL_CLIENT_LOAD_NOT_LOADED;
 	priv->uri = NULL;
 	priv->factory = CORBA_OBJECT_NIL;
+	priv->timezone_info = NULL;
 }
 
 /* Gets rid of the factory that a client knows about */
@@ -269,6 +277,11 @@ cal_client_destroy (GtkObject *object)
 		priv->uri = NULL;
 	}
 
+	if (priv->timezone_info) {
+		cal_client_free_builtin_timezone_info (priv->timezone_info);
+		priv->timezone_info = NULL;
+	}
+
 	g_free (priv);
 	client->priv = NULL;
 
@@ -1506,6 +1519,95 @@ cal_client_remove_object (CalClient *client, const char *uid)
 	return retval;
 }
 
+/* Builds a list of CalComponentAlarms structures */
+static GArray *
+build_timezone_info_array (GNOME_Evolution_Calendar_CalTimezoneInfoSeq *seq)
+{
+	GArray *zones;
+	CalTimezoneInfo zone;
+	int i;
+
+	zones = g_array_new (FALSE, FALSE, sizeof (CalTimezoneInfo));
+
+	for (i = 0; i < seq->_length; i++) {
+		GNOME_Evolution_Calendar_CalTimezoneInfo *tzinfo;
+
+		tzinfo = seq->_buffer + i;
+
+		zone.location = g_strdup (tzinfo->location);
+		zone.latitude = tzinfo->latitude;
+		zone.longitude = tzinfo->longitude;
+
+		g_array_append_val (zones, zone);
+	}
+
+	return zones;
+}
+
+/**
+ * cal_client_get_builtin_timezone_info:
+ * @client: A calendar client.
+ *
+ * Returns information on the builtin timezones, i.e. their names and
+ * locations. This is so we can use the map to select a timezone.
+ *
+ * Return value: An array of #CalTimezoneInfo structures. The caller should not
+ * change or free this array. The CalClient will free it when it is destroyed.
+ **/
+GArray *
+cal_client_get_builtin_timezone_info (CalClient *client)
+{
+	CalClientPrivate *priv;
+	CORBA_Environment ev;
+	GNOME_Evolution_Calendar_CalTimezoneInfoSeq *seq;
+
+	g_return_val_if_fail (client != NULL, NULL);
+	g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
+
+	priv = client->priv;
+
+	/* If we have already got this data from the server just return it. */
+	if (priv->timezone_info)
+		return priv->timezone_info;
+
+	CORBA_exception_init (&ev);
+
+	seq = GNOME_Evolution_Calendar_Cal_getBuiltinTimezoneInfo (priv->cal,
+								   &ev);
+	if (ev._major != CORBA_NO_EXCEPTION) {
+		g_message ("cal_client_get_builtin_timezone_info(): could not get the builtin timezone info");
+		CORBA_exception_free (&ev);
+		return NULL;
+	}
+	CORBA_exception_free (&ev);
+
+	priv->timezone_info = build_timezone_info_array (seq);
+	CORBA_free (seq);
+
+	return priv->timezone_info;
+}
+
+/**
+ * cal_client_free_builtin_timezone_info:
+ * @zones: An array of timezone info returned from
+ * cal_client_get_builtin_timezone_info().
+ *
+ * Frees the builtin timezone information structures.
+ **/
+static void
+cal_client_free_builtin_timezone_info (GArray	*zones)
+{
+	CalTimezoneInfo *zone;
+	int i;
+
+	for (i = 0; i < zones->len; i++) {
+		zone = &g_array_index (zones, CalTimezoneInfo, i);
+		g_free (zone->location);
+	}
+
+	g_array_free (zones, TRUE);
+}
+
 /**
  * cal_client_get_query:
  * @client: A calendar client.
diff --git a/calendar/cal-client/cal-client.h b/calendar/cal-client/cal-client.h
index 1f0211ef32..6d5891f7e1 100644
--- a/calendar/cal-client/cal-client.h
+++ b/calendar/cal-client/cal-client.h
@@ -65,6 +65,13 @@ typedef enum {
 	CAL_CLIENT_LOAD_LOADED
 } CalClientLoadState;
 
+/* A timezone name and its coordinates in the world. */
+typedef struct _CalTimezoneInfo CalTimezoneInfo;
+struct _CalTimezoneInfo {
+	char	*location;
+	double	 latitude;
+	double	 longitude;
+};
 
 struct _CalClient {
 	GtkObject object;
@@ -126,6 +133,8 @@ gboolean cal_client_remove_object (CalClient *client, const char *uid);
 
 CalQuery *cal_client_get_query (CalClient *client, const char *sexp);
 
+GArray *cal_client_get_builtin_timezone_info (CalClient *client);
+
 
 
 END_GNOME_DECLS